feat: Fetching index suggestions and dealing with the states CLOUDP-311786

packages/compass-components/package.json

@@ -63,6 +63,7 @@
     "@leafygreen-ui/search-input": "^5.0.2",
     "@leafygreen-ui/segmented-control": "^10.0.2",
     "@leafygreen-ui/select": "^14.0.2",
+    "@leafygreen-ui/skeleton-loader": "^2.0.11",
     "@leafygreen-ui/split-button": "^4.1.5",
     "@leafygreen-ui/table": "^13.0.1",
     "@leafygreen-ui/tabs": "^14.0.2",

packages/compass-components/src/index.ts

@@ -211,3 +211,4 @@ export {
   type ItemRenderer as VirtualListItemRenderer,
 } from './components/virtual-list';
 export { SelectTable } from './components/select-table';
+export { ParagraphSkeleton } from '@leafygreen-ui/skeleton-loader';

packages/compass-indexes/package.json

@@ -84,6 +84,7 @@
     "mongodb": "^6.14.1",
     "mongodb-collection-model": "^5.26.0",
     "mongodb-data-service": "^22.25.8",
+    "mongodb-mql-engines": "^0.0.4",
     "mongodb-query-parser": "^4.3.0",
     "mongodb-ns": "^2.4.2",
     "numeral": "^2.0.6",

packages/compass-indexes/src/components/create-index-form/mdb-code-viewer.tsx

@@ -24,15 +24,15 @@ const generateCode = ({
 }: {
   dbName: string;
   collectionName: string;
-  indexNameTypeMap: { [key: string]: string };
+  indexNameTypeMap: Record<string, string | number>;
 }) => {
   let codeStr = `db.getSiblingDB("${dbName}").getCollection("${escapeText(
     collectionName
   )}").createIndex({\n`;
 
   Object.entries(indexNameTypeMap).forEach(([name, type], index) => {
     // Replacing everything inside the parenthesis i.e. (asc)
-    let parsedType = escapeText(type.replace(/\(.*?\)/g, '')).trim();
+    let parsedType = escapeText(`${type}`.replace(/\(.*?\)/g, '')).trim();
     if (!NUMERIC_INDEX_TYPES.includes(Number(parsedType))) {
       parsedType = `"${parsedType}"`;
     }
@@ -59,7 +59,7 @@ const MDBCodeViewer = ({
 }: {
   dbName: string;
   collectionName: string;
-  indexNameTypeMap: { [key: string]: string };
+  indexNameTypeMap: Record<string, string | number>;
   dataTestId?: string;
 }) => {
   const GeneratedCode = generateCode({

packages/compass-indexes/src/components/create-index-form/query-flow-section.spec.tsx

@@ -2,35 +2,83 @@ import React from 'react';
 import { render, screen } from '@mongodb-js/testing-library-compass';
 import QueryFlowSection from './query-flow-section';
 import { expect } from 'chai';
+import { Provider } from 'react-redux';
+import { setupStore } from '../../../test/setup-store';
+import { ActionTypes } from '../../modules/create-index';
 
 describe('QueryFlowSection', () => {
+  const store = setupStore();
+  const dbName = 'fakeDBName';
+  const collectionName = 'fakeCollectionName';
   const renderComponent = () => {
     render(
-      <QueryFlowSection
-        schemaFields={[]}
-        serverVersion="5.0.0"
-        dbName={'fakeDBName'}
-        collectionName={'fakeCollectionName'}
-      />
+      <Provider store={store}>
+        <QueryFlowSection
+          schemaFields={[]}
+          serverVersion="5.0.0"
+          dbName={dbName}
+          collectionName={collectionName}
+        />
+      </Provider>
     );
   };
-  it('renders the input query section with a code editor', () => {
-    renderComponent();
-    const codeEditor = screen.getByTestId('query-flow-section-code-editor');
-    expect(codeEditor).to.be.visible;
+
+  describe('in the initial state', () => {
+    beforeEach(() => {
+      renderComponent();
+    });
+    it('renders the input query section with a code editor', () => {
+      const codeEditor = screen.getByTestId('query-flow-section-code-editor');
+      expect(codeEditor).to.be.visible;
+    });
+
+    it('renders the "Show suggested index" button', () => {
+      const buttonElement = screen.getByText('Show suggested index');
+      expect(buttonElement).to.be.visible;
+    });
+    it('does not render the suggested index section with formatted index code', () => {
+      const codeElement = screen.queryByTestId(
+        'query-flow-section-suggested-index'
+      );
+      expect(codeElement).to.be.null;
+    });
   });
 
-  it('renders the "Show suggested index" button', () => {
-    renderComponent();
-    const buttonElement = screen.getByText('Show suggested index');
-    expect(buttonElement).to.be.visible;
+  describe('when fetching for index suggestions', () => {
+    beforeEach(() => {
+      renderComponent();
+
+      store.dispatch({
+        type: ActionTypes.SuggestedIndexesRequested,
+      });
+    });
+    it('renders a loader for the code section', () => {
+      const loader = screen.getByTestId('query-flow-section-code-loader');
+      expect(loader).to.be.visible;
+    });
   });
 
-  it('renders the suggested index section with formatted index code', () => {
-    renderComponent();
-    const codeElement = screen.getByTestId(
-      'query-flow-section-suggested-index'
-    );
-    expect(codeElement).to.be.visible;
+  describe('when index suggestions is fetched', () => {
+    beforeEach(() => {
+      renderComponent();
+
+      store.dispatch({
+        type: ActionTypes.SuggestedIndexesFetched,
+        sampleDocs: [],
+        indexSuggestions: { a: 1, b: 2 },
+        fetchingSuggestionsError: null,
+        indexSuggestionsState: 'success',
+      });
+    });
+
+    it('renders the suggested index section with formatted index code', () => {
+      const codeElement = screen.getByTestId(
+        'query-flow-section-suggested-index'
+      );
+      expect(codeElement).to.be.visible;
+      expect(codeElement).to.have.text(
+        `db.getSiblingDB("${dbName}").getCollection("${collectionName}").createIndex({  "a": 1,  "b": "2"});`
+      );
+    });
   });
 });

packages/compass-indexes/src/components/create-index-form/query-flow-section.tsx

@@ -4,17 +4,24 @@ import {
   Body,
   cx,
   useFocusRing,
+  ParagraphSkeleton,
 } from '@mongodb-js/compass-components';
-import React, { useMemo } from 'react';
+import React, { useMemo, useCallback } from 'react';
 import { css, spacing } from '@mongodb-js/compass-components';
 import {
   CodemirrorMultilineEditor,
   createQueryAutocompleter,
 } from '@mongodb-js/compass-editor';
 import MDBCodeViewer from './mdb-code-viewer';
+import type { RootState } from '../../modules';
+import { fetchIndexSuggestions } from '../../modules/create-index';
+import type {
+  IndexSuggestionState,
+  SuggestedIndexFetchedProps,
+} from '../../modules/create-index';
+import { connect } from 'react-redux';
 
 const inputQueryContainerStyles = css({
-  marginBottom: spacing[600],
   display: 'flex',
   flexDirection: 'column',
 });
@@ -60,16 +67,34 @@ const codeEditorStyles = css({
   },
 });
 
+const indexSuggestionsLoaderStyles = css({
+  marginBottom: spacing[600],
+  padding: spacing[600],
+  background: palette.gray.light3,
+  border: `1px solid ${palette.gray.light2}`,
+  borderRadius: editorContainerRadius,
+});
+
 const QueryFlowSection = ({
   schemaFields,
   serverVersion,
   dbName,
   collectionName,
+  onSuggestedIndexButtonClick,
+  indexSuggestions,
+  fetchingSuggestionsState,
 }: {
   schemaFields: { name: string; description?: string }[];
   serverVersion: string;
   dbName: string;
   collectionName: string;
+  onSuggestedIndexButtonClick: ({
+    dbName,
+    collectionName,
+    inputQuery,
+  }: SuggestedIndexFetchedProps) => Promise<void>;
+  indexSuggestions: Record<string, number> | null;
+  fetchingSuggestionsState: IndexSuggestionState;
 }) => {
   const [inputQuery, setInputQuery] = React.useState('');
   const completer = useMemo(
@@ -88,6 +113,18 @@ const QueryFlowSection = ({
     radius: editorContainerRadius,
   });
 
+  const handleSuggestedIndexButtonClick = useCallback(() => {
+    const sanitizedInputQuery = inputQuery.trim();
+
+    void onSuggestedIndexButtonClick({
+      dbName,
+      collectionName,
+      inputQuery: sanitizedInputQuery,
+    });
+  }, [inputQuery, dbName, collectionName, onSuggestedIndexButtonClick]);
+
+  const isFetchingIndexSuggestions = fetchingSuggestionsState === 'fetching';
+
   return (
     <>
       <Body baseFontSize={16} weight="medium" className={headerStyles}>
@@ -116,30 +153,56 @@ const QueryFlowSection = ({
 
         <div className={editorActionContainerStyles}>
           <Button
-            onClick={() => {
-              // TODO in CLOUDP-311786
-            }}
+            onClick={handleSuggestedIndexButtonClick}
             className={suggestedIndexButtonStyles}
             size="small"
           >
             Show suggested index
           </Button>
         </div>
       </div>
-      <Body baseFontSize={16} weight="medium" className={headerStyles}>
-        Suggested Index
-      </Body>{' '}
-      <div className={suggestedIndexContainerStyles}>
-        {/* TODO in CLOUDP-311786, replace hardcoded values with actual data */}
-        <MDBCodeViewer
-          dataTestId="query-flow-section-suggested-index"
-          dbName={dbName}
-          collectionName={collectionName}
-          indexNameTypeMap={{ 'awards.win': '1', 'imdb.rating': '1' }}
+
+      {(isFetchingIndexSuggestions || indexSuggestions) && (
+        <Body baseFontSize={16} weight="medium" className={headerStyles}>
+          Suggested Index
+        </Body>
+      )}
+
+      {isFetchingIndexSuggestions ? (
+        <ParagraphSkeleton
+          data-testid="query-flow-section-code-loader"
+          className={indexSuggestionsLoaderStyles}
         />
-      </div>
+      ) : (
+        indexSuggestions && (
+          <>
+            <div className={suggestedIndexContainerStyles}>
+              <MDBCodeViewer
+                dataTestId="query-flow-section-suggested-index"
+                dbName={dbName}
+                collectionName={collectionName}
+                indexNameTypeMap={indexSuggestions}
+              />
+            </div>
+          </>
+        )
+      )}
     </>
   );
 };
 
-export default QueryFlowSection;
+const mapState = ({ createIndex }: RootState) => {
+  const { indexSuggestions, sampleDocs, fetchingSuggestionsState } =
+    createIndex;
+  return {
+    indexSuggestions,
+    sampleDocs,
+    fetchingSuggestionsState,
+  };
+};
+
+const mapDispatch = {
+  onSuggestedIndexButtonClick: fetchIndexSuggestions,
+};
+
+export default connect(mapState, mapDispatch)(QueryFlowSection);